
SmartRF
CC2420
Keys__________________________________________________________________________44
Nonce / counter _________________________________________________________________44
Stand-alone encryption ___________________________________________________________45
In-line security operations_________________________________________________________45
CTR mode encryption / decryption__________________________________________________46
CBC-MAC_____________________________________________________________________46
CCM _________________________________________________________________________46
Timing________________________________________________________________________47
Linear IF and AGC Settings________________________________________________________47
RSSI / Energy Detection ___________________________________________________________47
Link Quality Indication ___________________________________________________________48
Clear Channel Assessment _________________________________________________________49
Frequency and Channel Programming_______________________________________________49
VCO and PLL Self-Calibration _____________________________________________________50
VCO _________________________________________________________________________50
PLL self-calibration______________________________________________________________50
Output Power Programming _______________________________________________________50
Voltage Regulator ________________________________________________________________50
Battery Monitor__________________________________________________________________51
Crystal Oscillator ________________________________________________________________52
Input / Output Matching __________________________________________________________53
Transmitter Test Modes ___________________________________________________________54
Unmodulated carrier _____________________________________________________________54
Modulated spectrum _____________________________________________________________55
System Considerations and Guidelines _______________________________________________56
Frequency hopping and multi-channel systems_________________________________________56
Data burst transmissions __________________________________________________________56
Crystal accuracy and drift _________________________________________________________56
Communication robustness ________________________________________________________56
Communication security __________________________________________________________56
Low cost systems________________________________________________________________57
Battery operated systems__________________________________________________________57
BER / PER measurements_________________________________________________________57
PCB Layout Recommendations_____________________________________________________58
Antenna Considerations ___________________________________________________________58
Configuration Registers ___________________________________________________________60
Test Output Signals_______________________________________________________________80
Package Description (QLP 48)______________________________________________________82
Recommended layout for package (QLP 48) __________________________________________83
Package thermal properties ________________________________________________________83
Soldering information ____________________________________________________________83
Plastic tube specification__________________________________________________________84
Carrier tape and reel specification___________________________________________________84
Ordering Information_____________________________________________________________84
General Information______________________________________________________________85
Document History _______________________________________________________________85
Product Status Definitions_________________________________________________________86
Chipcon AS
SmartRF
CC2420 Preliminary Datasheet (rev 1.2), 2004-06-09
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